Agilent Technologies 6032A - Page 77

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Figure 4-5. Power Mesh Block Diagram

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Table of Contents6
Introduction10
Scope10
Calibration and Verification10
Troubleshooting10
Principles of Operation10
Replaceable Parts10
Circuit Diagrams10
Safety Considerations10
Manual Revisions11
Firmware Revisions11
Calibration and Verification12
Introduction12
Test Equipment Required12
Operation Verification Tests12
Calibration Procedure12
Initial Setup15
Voltage Monitor Zero Calibration16
Common Mode Calibration16
Remote Readback Zero Calibration16
Constant Voltage Full Scale Calibration18
Voltage Monitor and Remote Readback Full Scale Calibration18
Constant Voltage Zero Calibration19
Current Monitor Zero Calibration19
Constant Current Zero Calibration19
Current Monitor Full Scale Calibration20
Constant Current Full Scale Calibration20
Power Limit Calibration21
Resistance Programming Full Scale Calibration22
Performance Tests22
Measurement Techniques22
Constant Voltage (CV) Tests23
Constant Current (CC) Tests29
Initialization Procedure32
Troubleshooting34
Introduction34
Initial Troubleshooting Procedures34
Electrostatic Protection35
Repair and Replacement35
A2 Control Board Removal36
A4 FET Board Removal36
A5 Diode Board Removal37
A8 GPIB Board Removal37
A3 Front-Panel Board Removal37
A1 Main Board Removal37
Overall Troubleshooting Procedure38
GPIB Section Troubleshooting38
Primary Interface Troubleshooting41
Secondary Interface Troubleshooting42
Voltage and Current DAC42
Readback DAC Circuits44
Readback Multiplexer (U20)44
Signature Analysis46
Primary SA46
Front Panel SA46
Secondary SA47
Power Section Troubleshooting52
Main Troubleshooting Setup53
Troubleshooting No-Output Failures54
Power Section Blocks55
Troubleshooting AC-Turn-On Circuits58
Troubleshooting DC-To-DC Converter58
Troubleshooting Bias Supplies59
Troubleshooting down Programmer62
Troubleshooting CV Circuit62
Troubleshooting CC Circuit63
Troubleshooting OVP Circuit63
Troubleshooting PWM & Clock64
Principles of Operation66
Introduction66
GPIB Board66
Primary Microprocessor66
Address Switches66
Eeprom68
Isolation68
Secondary Microprocessor68
Digital-To-Analog Converters68
Analog Multiplexer68
Status Inputs68
Front Panel Board69
Address Latches and Decoders69
Volts and Amps Output Ports and Displays69
RPG and Latches69
Front-Panel Switches and Input Port69
Mode Indicators71
OVP Adjust Control71
Power Clear71
Power Mesh and Control Board71
Overview71
Power Mesh72
Control Board74
Replaceable Parts80
Introduction80
Ordering Information81
Component Location and Circuit Diagrams102
L00 Vac Input Power Option 100120
General Information120
Description120
Scope of Appendix A120
Suggestions for Using Appendix A120
Chapter 1 Manual Changes120
Chapter 2 Manual Changes120
Chapter 3 Manual Changes124
Chapter 4 Manual Changes124
Chapter 5 And 6 Manual Changes124
Blank Front Panel Option 001126
Introduction126
Troubleshooting126
Chapter 2 Manual Changes126
Chapter 3 Manual Changes127
Chapter 5 And 6 Manual Changes127

Agilent Technologies 6032A - Page 77

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